Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, va tinh, le thanh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
va danh » va dinh, va dan, va hanh
vi cua » vai cua, di cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang x hoi. hieu van cam duc ((((va thanh) OR (ban thanh))) or (va danh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu van cam duc ((((va thanh) OR (ban thanh))) OR (va danh)) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu van cam duc ((((va thanh) OR (ban thanh))) or (va danh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu van cam duc ((((va thanh) OR (ban thanh))) or (va danh)) vi cua te*.